公开(公告)号：US20210313839A1

公开(公告)日：2021-10-07

申请号：US17352684

申请日：2021-06-21

Applicant: Samsung Electronics Co., Ltd.

Inventor： In-hyuk KIM ,  Seok-hyun KIM ,  Young-seok KIM

IPC: H02J50/12 ,  H02J50/80 ,  H02J7/00 ,  H04B5/00 ,  G06F1/3234 ,  G06F1/26

Abstract: A wireless communication device includes a battery, a power management integrated circuit (PMIC), a near field communication (NFC) integrated circuit connected to the battery and to the PMIC, and an internal device connected to the NFC integrated circuit and configured to support an NFC operation, wherein the NFC integrated circuit includes a power supply path control circuit configured to cut off a first power supply path from the PMIC to the internal device when the NFC integrated circuit is in an on-state or an operating state and to form a second power supply path from the battery to the internal device to supply power to the internal device based on existence or non-existence of a first supply voltage provided from the PMIC.

公开(公告)号：US20190305599A1

公开(公告)日：2019-10-03

申请号：US16258958

申请日：2019-01-28

Applicant: Samsung Electronics Co., Ltd.

Inventor： In-hyuk KIM ,  Seok-hyun KIM ,  Young-seok KIM

IPC: H02J50/12 ,  H02J50/80 ,  H02J7/00 ,  H04B5/00

Abstract: A wireless communication device includes a battery, a power management integrated circuit (PMIC), a near field communication (NFC) integrated circuit connected to the battery and to the PMIC, and an internal device connected to the NFC integrated circuit and configured to support an NFC operation, wherein the NFC integrated circuit includes a power supply path control circuit configured to cut off a first power supply path from the PMIC to the internal device when the NFC integrated circuit is in an on-state or an operating state and to form a second power supply path from the battery to the internal device to supply power to the internal device based on existence or non-existence of a first supply voltage provided from the PMIC.